Question about 1999 Dodge Grand Caravan

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Ac blowing ht air, compressor not coming on

Air conditioner in grand caravan blowing hot air. Tried to put refrigerant in it but compressor not coming on.

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Check the fuses/relay for the compressor. If good, bypass the pressure switch. If the compressor comes on, there is too little internal pressure. Have the system evacuated and recharged. If the compressor does not come on, it could be bad.

Posted on May 12, 2009

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1 Answer

My air conditioner is blowing hot air, where is the port so that I can add refridgerant?


The charging port is located in the larger of the two hoses/lines that come from the AC compressor, the fill port will accept only the right fitting from the charging source hose fitting. Before you add refrigerant you need to locate the leak, the refrigerant doesn't just disappear, it leaks out somewhere.. My guess would be the AC compressor front seal.

Jun 30, 2016 | 2004 Hyundai Santa Fe

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My air conditioner after fillling with refrigerant still blows hot air


if the compressor comes on and fans work when the ac is on ur compressor and fans work , if u fill the a.c and it fails to hold pressure you obvosuly have a leak look around to see if the condensor is black with oil spots look at your ac lines for oily sports especially were they made the crimps . alot of a c orings go bad , after u visully check for leaks and cant find anything fill the system with nitrogen and spray soap and water if that doesnt help put a die in it and re fill a .c keep and eye on ur a,c and u will see the stain of dye of ur a,c compenet , make shure to were those a c goggles, if u see a.c stain on the drain tube ur evap is leaking good luck

Jul 22, 2012 | 2000 Dodge Grand Caravan

1 Answer

Air cinditioning wont stay on, it switches to heat and wont shut off


What do you mean when you say it wont shut off? is it blowing hot air or do you just feel a lite flow of hot air even if you have the settings to cold?

If this is the problem that you always feel hot air at low flow and the ac goes to hot air then i would say one of two things, first if you have the selector to cold and you feel hot air then there may be a problem with the blend door, this door move to allow hot or cold air, the door may be broken or just a bad motor that controls it. keep in mind if the ac system shuts down for any reason the air then will be warm, it will be about the same temp as outside and maybe a little hotter.

this problem almost sounds like the ac compressor shuts off and then you are getting the outside air which is hot, there are many reasons for the compressor to shut off, it could be the compressor clutch heating up and disengaging , this would be due to a bad compressor clutch.

another reason is the fans are not working, the best thing to do is when the system starts to blow warm check and see if the compressor is running, start engine and look at the front of compressor, with ac off the front of it will not move, and then with ac on the front will spin, check it out and let me know, if it blows warm air and ac is not working then it may be compressor problem but if you are getting warm air and the compressor is spinning then it may be a door problem.

This is hard to check with out testing the system, so i listed a few things to check and let me know the out come. also the ac blows cold for how long before it gets hot air blowing out of the vents, good day.

May 25, 2012 | 2000 Dodge Grand Caravan

1 Answer

My 2003 jeep liberty's air conditioner blows hot


Probably, to be sure make sure the compressor is coming on. With the engine running turn on the ac and watch the rpms, they should drop for a second if the compressor is coming on. If so you just need to recharge, the refrigerant is R-134a, which you can get from your local parts store along with the kit needed to charge it. The kit will come with detailed instructions and is a pretty easy job.

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1 Answer

My 2002 Expedition air conditioner will sometimes blow hot air and others cold air


I would check the following possibilities:
1. Is compressor clutch working? - You need to do this when the ac is blowing hot air only - locate compressor drive pulley on engine - rubber belt wraps around it. Start engine and set to max ac. When the ac is blowing hot air, look at the center of the compressor drive pulley using a good flash light - watch it for a while, it should be spinning with the pulley - this means the compressor is engaged. If not, the compressor is not engaged. If your ac is blowing hot air, then the compressor should be engaged and running (trying to cool). If it is not engaged, then your compressor clutch is probably going out. Could be low voltage to clutch, but more likely the clutch is worn out and only working some of the time. Note: if working normally, the compressor clutch will engage and disengage in cycles- but the air should always be cold. If clutch is bad, compressor would need to be replaced (sold as one unit). This is tricky to diagnose and could take some time - you need to do it when ac is blowing hot air but set to max cooling.

2. Low on refrigerant or refrigerant has moisture in it? If your ac blows cold initially after being off for a while, then heats up, and continues to regularly cycle back and forth between hot and cool air, then the system may be low on refrigerant or the refrigerant may have moisture in it that is freezing and restricting refrigerant flow. An a/c shop can check refrigerant level and even replace refrigerant if moisture is suspected.

Could be other issues, but I would start with these.

Good luck

May 07, 2010 | 1999 Ford Expedition

2 Answers

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the control module is bad it has an intermittant fault replace this and it will work fine

Aug 17, 2009 | 1997 Dodge Caravan

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2005 dodge grand caravan heat not working. one vent blows warm air and the others just blow reg. air. also ac isnt blowing cold air. freon put in worked for a month now not working.


There is a recall that has something to do with the air/heat system in 2005 Dodge Grand caravans. Recall F01. Here is a link. I had mine done two weeks ago, cost me nothing. My air conditioner was overheating.

Aug 07, 2009 | 2005 Dodge Caravan

1 Answer

2003 dodge caravan air conditioner problems


sounds like you have a refrigerant leak. you should charge the system up and check for leaks. all fittings, the condensor, the evaporator, and all the lines

Jul 17, 2009 | 2003 Dodge Caravan

1 Answer

Air conditioner is not blowing cold air. Any idea


could be anything from low refrigerant to bad compressor cooling fan or air distribution system. if you never have worked on a c i would recommend taking it to a professional

Jun 26, 2009 | 2005 Dodge Grand Caravan

1 Answer

2005 KA blowing hot air out when set to cold


start car.turn on air conditioner high cool .raise hood look to see if the compressor clutch is engaged and running.if yes your ac air door could be stuck closed or the air door vacuum actutator not receiving vacuum.a vacuum line is broken or off. or the control switch bad.that control the AC and heater mode. if compressor clutch is not engagged.check for power at compressor clutch.if yes compressor clutch coil open. or the air conditioner refrigerant R 134 is low take car to a private garage with a good reputation. they wont be expensive as the dealership.have them hook car air conditioner to a manifold gauge set to check your refrigerant low side and high side pressure.

Jun 24, 2009 | 1999 Ford Taurus

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